Carpet fabric.



No. 824,045. PATENTED JUNE 19, 190e.

C. C. STEWART. CARPET FABRIC.

APPLIOATION FILED MAR.8, 1905.A

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UNITED STATES PATENT ornroir.l

CHARLES CARROLL STEWART, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO ARCHIBALD T. JAMES, OF P HL DELPHIA, PENNSYLVANIA.

yCARPET FABRIC.

Specification of Letters Patent.

To au whom, it may concern:

Be it known that I, CHARLES CARROLL STEWART, a citizen of the United States, residing at Philadelphia, in the`oounty of Philadelphia and State of Pennsylvania, have invented certainnew and useful Improvements in Car et Fabrics; and I do hereby declare the fol owin to be a full, clear, and exact description o the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in carpet fabrics. A

In manufacturing the product of my Patent No. 762,210, of June 7, 1904, wherein I introduced a soft cushioning-warp above the ordinary back or stuer war s, below the pile and between the upper and ower wefts it has been found that these large cushioningwarps resting immediately upon several of the smaller backing-warps have the tendency to mix with said backin -warps as they go through the loom, and tIius drop down between said latter warps at intervals, so that streaks of white appear on the back of the iinished carpet. The result of this dropping or falling of the cushioning-warps is to render the surface of the carpet more or less irregular, and at each point where such a warpthread has fallen or. wedged itself between the backing-warps the cushioning effect is llost to a large degree. kTo remedy thisdefect.. and prevent the cushioning-warps from thus dropping down betweenthe backingwarps is the objectiof this invention, and to accomplish this result I provide an additional and intermediate weft-thread running between the ordinary upper and lower wefts and transversely between the backing and cushioning warps. This intermediate weftthread is thrown by an extra shuttle or other suitable feeding device on the loom provided for that purpose. It passes across between the cushioning-warps and backing-warps and comes back below the backing side by side with the ordinary lower weft and is bound in by the binding-warps.

In the Vaccompanying drawings, illustrating the preferred embodiment of m invention, Figure l is an enlarged sectiona view of a piece of carpet made in .accordance with my invention, the section being taken in a velvet carpet looking at a crosscut edge.

Fig. 4 isa similar view with the threads partly raveled out to show the thickness of lthe cushioning-warps when ex vanded as compared with that of the backingfwarps and pile.

While the referred embodiment of my invention is ill) drawings and its construction and arrangements of parts are described in this specification, the right iS reserved to make such changes from the construction yShown and described herein as the scope of the claims hereto appended will permit.

Referring more particularly to the drawings, 1 represents the backing-warps, 2 3, the

1binding-warps,respectively; 4, the cushioning-warps; 5 and 6, the ordinary up er and lower -weft-threads, respectively; 7 ,'t e pile,

i and 8 and 9, res ectively, the additional intermediate and Ilower wefts. the drawings, said additional weft-thread passes between the backing and cushioning warps, xing each in place and preventing them from mixingand comes back, as-at 9, below said backing alongside of the lower weft-thread 6. These additional weftsare bound intol place by the binding-warps, and they insure the arrangement of a cushioningwarp below each row of pile or yarn.

In Figs. 3 and 4 I have attempted to give some idea of the cushioning elect given by my interlining by showing it compressed as it is woven into kthe carpet and as expanded when raveled out. With the .addition ofthe extra wefts described herein, whereby the cushioning-warps are prevented from becoming mixed with the backing-warps, which is the only objectionable feature of the product of my former patent, hereinbefore referred to, it will be seen that the present product is a great improvement over the ordinary` carpets in softness, appearance, and wearing qualities.

While the extra weft-threads which sepa; 7

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As shown in IOO warps. vSaid eXtra weft may also be returned above the cushioning-warps and below the pile side by side with the upper wefts, if desired.

The machine for making my improved. carpet should be provided with additional harness and shuttles to operate the additional weft-thread.

I-Iaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a carpet fabric, the combination with binding warp-threads, upper and lower weftthreads, backing or stuffer warps, pile and cushioningwarps arranged between said s tufler-warps and said pile, of means for separating said cushioning-warps and stuiferwarps.

2. In a carpet fabric, the combination with binding warp-threads, upper and lower weft threads, backing or stu'er warps, pile and cushioning-warps arranged between said stufferewarps and said pile, of means running between said cushioning-warps and stuifer- Warps for separating said stufer-warps and cushioning-warps.

, ,3. In a carpet fabric, the combination with binding warp-threads, upper and lower weftthreads, backing or stuffer warps, pile and cushioningwarps arranged between said stuferwarps and said pile, of means for Separating said cushioning-warps and said stuffer-Warps and for retaining each in a separate plane. Y

v 4. In a carpet fabric,the combination with binding warp-threads, upper and lower weftthreads, backing or stuifer warps, pile and cushioning-warps arranged between said stuffer-warps and said pile, of means for preventing the cushioning-warps from entering the plane of the stuifer-warps.

5. In a carpet fabric, the combination with binding warp-threads, upper and lower weftthreads, backing or stuii'er warps, pile and cushioning-warps arranged between said stuifer-warps and said pi e, of an additional weft-thread arranged between said stuiferwarps and cushioning-warps.

6. In a carpet fabric, the combination with binding warp-threads, upper and lower weftthreads, backing or stuifer warps, pile and cushioning-warps arranged between said stuifer-warps and said pile, of an additional weft-thread run below said cushioning-warps and above said stufler-warps.

7. In a carpet fabric, the combination with binding warp-threads, upper and lower weftthreads, backing or stuiier warps, pile and cushioning-warps arranged between said stuifer-warps and said pile, of additional weft threads run through between said stuffer-warps and cushioning-warps and bach below said backing-warps beside the lower weft-threads.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES CARROLL STEWART.

Witnesses:

GEO. C. HUToHrNsoN, W. CLARENCE DUvALL. 

